Dr. Mark Stolar, MD

Dr. Mark Stolar, MD

Internal MedicineMaleAge 68

Accepting new patients

Dr. Mark Stolar, MD is a Internal Medicine Specialist in McHenry, IL and has over 42 years of experience in the medical field. He graduated from University Of Illinois College Of Medicine medical school in 1979. He is affiliated with medical facilities such as Northwestern Medicine Mchenry Hospital and Northwestern Medicine Huntley Hospital. He is accepting new patients and has indicated that he accepts telehealth appointments. Be sure to call ahead with Dr. Stolar to book an appointment.

Locations

Practice

New Patient?
(815) 255-3312
Northwestern Medicine Regional Medical Group2507 N Richmond Rd McHenry, IL 60051
1

At a Glance

  • Explains Conditions Well Patients said this doctor explains conditions well. See reviews
  • Offers Telehealth This provider offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital Patient Safety Excellence Award™ See hospitals

Dr. Stolar's Reviews

Likelihood to recommend Dr. Stolar

4.7

Based on 46 ratings

5 Stars
91.30434782608695%
(42)
4 Stars
0%
(0)
3 Stars
2.1739130434782608%
(1)
2 Stars
0%
(0)
1 Star
6.521739130434782%
(3)
healthgrades logo

Leave a review

How likely are you to recommend
Dr. Stolar
(Select your rating)
What went well
No reviews yet
What could be improved
No reviews yet

Your trust is our top concern.

We strive to keep the reviews trustworthy, honest & fair.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
Reply
He's been my doctor for 15 years. He's amazing. Never met a doctor so knowledgeable.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Julie V – Oct 22, 2021
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
Dr. Stolar is an EXCELLENT physician. He was located downtown Chicago and we followed him to McHenry. That says everything right there.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Adalynn – Sep 15, 2021
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
Dr Stolar is the best. Has been our doctor for over 30 years. Extremely knowledgeable, caring, listens to his patients and takes time to get you the right treatment or specialist (if needed). Very dedicated to his work and patients. We followed him to McHenry plus we moved to Florida. We are coming back up north to see him in August for our 6 month follow up - that's how much respect and trust my husband and I have for him. Will be a sad day for us when Dr Stolar retires, but will be happy for him when he decides to.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Debbie Riggio – Jun 08, 2021
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
Dr Stolar, my doctor of 23 years, is the smartest, most caring and efficient doctor I’ve seen. Always on time if not early, listens to you and your problems and his advice is spot on and sometimes not at all what you may have thought. Simply the best!
What went well
  • Appointment scheduling
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Robert Lee – Apr 18, 2021
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
Dr. Stolar is a fantastic, dedicated and thoughtful doctor. When you’re with him you know he’s listening for the bigger picture and the important details. Highly recommend. A patient couldn’t do better!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
3 people found this helpful
Helpful
Mara in Chicago, IL – Oct 06, 2017
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
Dr Stolar is a great listener which then leverages into his ability to provide the best care possible. He works with his patients to assess how to administer care. For instance, if the person wants to avoid a pharm solution, he will help find another alternative where possible. He is very trustworthy.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
3 people found this helpful
Helpful
Rebecca in Chicago – Apr 18, 2017
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
I highly recommend Dr. Stolar to anyone with endocrine issues (e.g., thyroid, diabetes, hormones). He is knowledgeable and compassionate and he treats the whole person. He's been my physician for 16 years and he's the only doctor who has ever made me feel better as a result of seeing him.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
6 people found this helpful
Helpful
Chicago, IL – Jan 05, 2017
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
Really understands the psychology behind being diabetic. Gives good advice that is actually applicable to real life as a diabetic. Does not berate you for having high numbers, instead works with you to make lifestyle changes. Gets very excited for you when your numbers improve. Definitely an "above and beyond" doctor.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
5 people found this helpful
Helpful
David H in Chicago, IL – Nov 17, 2016
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
Dr. Stolar considers my time restraints and ALWAYS fits me in to his schedule when I am ill. He is extremely knowledgeable and always knows the answers to my symptoms OR refers me to a specialist out of his field. Most importantly, he doesn't have his hand on the door knob when I am in his care. He LISTENS to why I am there and thoroughly treats my symptoms. He has a wonderful bedside manor & I give Dr. Stolar the highest recommendation.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
7 people found this helpful
Helpful
Peggy Marciniak in Chicago, IL – Aug 22, 2016
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
Pleasant, aasy to speak to, attentive, thoughtful in his responses, considerate of patient perspective, asks a lot of questions to get down to the root of the problem, no unnecessary procedures/tests
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
4 people found this helpful
Helpful
J Buchband in Glenview, IL – Feb 23, 2016
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
I have been going to Dr. Stolar for about 15 years and I have always received excellent care. The practice is very busy but Dr. Stolar always takes time to listen to what you tell him and take everything into consideration. He is an easy doctor to talk to which is a rare thing these days.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
5 people found this helpful
Helpful
Chicago, IL – Feb 01, 2016
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
He has been my primary care physician for 30 years! He is an excellent physician, thorough in physical assessment, listens carefully to his patients and makes a plan to fit them.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
3 people found this helpful
Helpful
Kathleen Fitzgerald in Chicago, IL – Jan 10, 2016
×Post a ResponseAre you Dr. Mark Stolar, MD?
Reply
Dr Stolar is very knowledgeable but he is also willing to listen to you and work out a treatment plan that's realistic. I love that he has a great sense of humor and doesn't rush through the visit.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
3 people found this helpful
Helpful
Kathleen Boylan in chicago, il – Dec 31, 2015
×Post a ResponseAre you Dr. Mark Stolar, MD?

Leave a review

How was your experience with Dr. Stolar?

Experience and Background Checks

Experience
Background

Background Check

No malpractice claims found for Illinois
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check if Dr. Stolar treats your condition or procedure

Dr. Stolar's conditions and procedures:

  • Abdominal Pain
  • Abnormal Thyroid
  • Achilles Tendinitis
  • ACTH (Cosyntropin) Stimulation Test
  • Acute Bronchitis
  • Acute Deep Vein Thrombosis (DVT)
  • Acute Pharyngitis
  • Acute Sinusitis
  • Acute Upper Respiratory Infection
  • Acute Venous Embolism Thrombosis
  • Adrenal Gland Diseases
  • Adrenal Incidentaloma
  • Adrenal Insufficiency
  • All Headaches (incl. Migraine)
  • Allergic Rhinitis
  • Anemia
  • Animal Allergies
  • Ankle Sprains and Strains
  • Anosmia
  • Anxiety
  • Arthritis
  • Arthritis of the Elbow
  • Arthritis of the Neck
  • Asthma
  • Asymptomatic Post-Menopausal Status
  • Ataxia
  • Atherosclerosis
  • Atopic Dermatitis (Eczema)
  • Atrophic Vaginitis
  • Autoimmune Diseases
  • Autoimmune Thyroid Diseases
  • Back Pain
  • Bedwetting
  • Benign Chronic Pain Syndrome
  • Benign Tumor
  • Bladder Infection
  • Blepharitis
  • Blood in Urine (Hematuria)
  • Boil
  • Bone Disorders
  • Breast Diseases
  • Bronchiectasis
  • Bronchitis
  • Bursitis
  • Calcium Metabolism Disorders
  • Cancer
  • Canker Sore
  • Carpal Tunnel Syndrome
  • Celiac Disease
  • Cellulitis
  • Chest Pain
  • Chest Wall Pain Syndrome
  • Cholesterol Screening
  • Chronic Deep Vein Thrombosis (DVT)
  • Chronic Fatigue Syndrome
  • Chronic Neck Pain
  • Chronic Pain
  • Chronic Pharyngitis
  • Chronic Prostatitis
  • Chronic Sinusitis
  • Cluster Headache
  • Coccygeal Pain
  • Cold Sore
  • Common Cold
  • Constipation
  • Contact Dermatitis
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Cough
  • Cushing's Syndrome
  • Deep Vein Thrombosis (DVT)
  • Dehydration
  • Dermatitis
  • Dermatitis Due to Drugs
  • Dermatitis Due to Substances Taken Internally
  • Dexamethasone Suppression Test
  • Diabetes Counseling
  • Diabetes Insipidus
  • Diabetes Mellitus, Secondary
  • Diabetes Screening
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Evaluation
  • Diabetic Ketoacidosis
  • Diabetic Polyneuropathy
  • Diarrhea
  • Difficulty With Walking
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Dizziness
  • Dynamic Endocrine Function Test
  • Dysentery
  • Dyslipidemia
  • Dysphagia
  • Dysthymia (Chronic Depression)
  • Dysthymia and Cyclothymia (Mood Disorders)
  • Electrocardiogram (EKG)
  • Emphysema
  • Enlarged Prostate (BPH)
  • Enteritis
  • Esophagitis
  • Essential Tremor
  • Fecal Occult Blood Test for Colorectal Cancer
  • Female Infertility
  • Fever
  • Fibromyalgia
  • Gait Abnormality
  • Ganglion Cyst
  • Gas-Bloat Syndrome
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastroparesis
  • Genital Warts
  • Goiter
  • Gout
  • Graves' Disease
  • Growth Hormone Deficiency
  • Gynecomastia
  • Hair Loss
  • Hashimoto's Disease
  • Headache
  • Heart Disease
  • Heart Palpitations
  • Heartburn
  • Hemorrhoids
  • Hernia
  • Herpes Simplex Infection
  • Herpes Zoster Without Complication
  • Hip Sprain
  • HIV (Human Immunodeficiency Virus)
  • Hives
  • Human Papillomavirus DNA Testing
  • Hydrocele
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hyperparathyroidism
  • Hypertension
  • Hyperthyroidism
  • Hypoglycemia
  • Hypogonadism
  • Hypokalemia
  • Hypoparathyroidism
  • Hypopituitarism
  • Hyposmolality and Hyponatremia
  • Hypotension
  • Hypotension (Excluding Maternal)
  • Hypothyroidism
  • Immunization Administration
  • Influenza (Flu)
  • Insomnia
  • Iron Metabolism Disorders
  • Irritable Bowel Syndrome
  • Itchy Skin
  • Joint Pain
  • Kidney Disease
  • Kidney Stone Pain (Renal Colic)
  • Knee Sprain
  • Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
  • Leg and Foot Ulcers
  • Limb Cramp
  • Limb Pain
  • Limb Swelling
  • Limb Swelling Caused by Fluid Overload
  • Lipedema
  • Lipid Disorders
  • Lipoprotein Disorders
  • Low Back Pain
  • Malaise and Fatigue
  • Mastodynia
  • Menopausal and Postmenopausal Disorders
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Mineral Metabolism Disorders
  • Muscle Spasm
  • Muscle Weakness
  • Nail and Nail Bed Infection
  • Nasopharyngitis
  • Nausea
  • Nighttime Urination (Nocturia)
  • Noninfectious Gastroenteritis and Colitis
  • Nosebleed
  • Obesity
  • Oral Glucose Tolerance Test
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Hip and Thigh
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteoarthritis of Spine
  • Osteopenia
  • Osteoporosis
  • Otitis Media
  • Overactive Bladder
  • Overweight
  • Painful Urination (Dysuria)
  • Parathyroid (Gland) Disease
  • Patellofemoral Pain Syndrome or Knee Pain
  • Pericardial Disease
  • Peripheral Nerve Disorders
  • Pharyngitis
  • Phlebitis and Thrombophlebitis
  • Plantar Fasciitis
  • Pneumonia
  • Poison Ivy, Poison Oak, or Poison Sumac Poisoning
  • Polycystic Ovarian Syndrome
  • Polymyalgia Rheumatica (PMR)
  • Polyneuropathy
  • Polyuria
  • Prostatitis
  • Proteinuria
  • Radiculopathy (Not Due to Disc Displacement)
  • Rash
  • Raynaud's Disease
  • Reflux Esophagitis
  • Restless Leg Syndrome
  • Ringworm
  • Rosacea
  • Runner's Knee
  • Salivary Gland Stones and Inflammation
  • Sarcoidosis
  • Sciatica (Not Due to Disc Displacement)
  • Seborrheic Dermatitis
  • Secondary Hypertension
  • Secondary Renovascular Hypertension
  • Sexually Transmitted Diseases (STDs)
  • Shingles
  • Shortness of Breath
  • Sinus Bradycardia
  • Sinus Tachycardia
  • Sinusitis
  • Skin Ulcer
  • Sleep Apnea
  • Sleep-Related Leg Cramp
  • Speech, Language and Learning Disorders
  • Sprains and Strains (incl. Muscle Tear)
  • Strep Throat
  • Symptomatic Menopause
  • Tension Headache
  • Testicular Dysfunction
  • Thyroid Cancer
  • Thyroid Cyst
  • Thyroid Disease
  • Thyroid Goiter
  • Thyroid Nodule
  • Thyroid Nodule Evaluation
  • Thyroid Scan
  • Thyroid Screening
  • Thyroiditis
  • Thyrotoxicosis Factitia
  • Tinnitus
  • Tobacco Use Disorder
  • Transient Ischemic Attack (TIA)
  • Tremor
  • Trigeminal Neuralgia
  • Ultrasound, Thyroid
  • Urinary Incontinence
  • Urinary Stones
  • Urinary Tract Infection (UTI)
  • Vaginitis and-or Vaginosis
  • VAP Lipid Testing
  • Varicose Eczema
  • Venous Embolism and Thrombosis
  • Vertigo
  • Viral Hepatitis
  • Viral Infection
  • Vitamin B Deficiency
  • Vitamin B12 Deficiency
  • Vitamin D Deficiency
  • Vitamin K Deficiency
  • Warts
  • Water Deprivation Test
  • Wellness Examination
  • Wheezing

Insurance Check

Search for your insurance provider

Dr. Stolar accepts

Accepted insurance can change. Please double-check when making an appointment.

(815) 255-3312

Dr. Stolar accepts the following insurance:

Aetna
Aetna HMO
Aetna POS
Aetna PPO
Choice Plus POS II
Anthem
National (BlueCard) PPO
Anthem Blue Cross Blue Shield
Anthem Blue Cross Blue Shield PPO
Beech Street (Multiplan)
Blue Cross Blue Shield
Blue Advantage PPO
Blue Card PPO
Blue Choice
Blue Cross Blue Shield PPO
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
Cigna
Cigna HMO
Cigna POS
Cigna PPO
Great West Healthcare-Cigna
LocalPlus
Coventry Health Care
Coventry Health Care PPO
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
HAP Insurance
Health Alliance PPO
HFN
Humana
Choice Care PPO
Humana HMO
Medicaid
MultiPlan
MultiPlan PPO
PHCS Network PPO
Tricare
UniCare
UniCare PPO
UnitedHealthCare
Choice
Choice Plus
Select HMO

About Me

Care Philosophy

"Better people means better experiences. Our care team is committed to delivering results that change lives." 

Specialties

  • Internal Medicine
  • Endocrinology, Diabetes & Metabolism

Education

1984
Northwestern Memorial Hospital
Fellowship Hospital
1982
Luth Genl Hosp
Residency Hospital
1979
University Of Illinois College Of Medicine
Medical School

Frequently Asked Questions

How can I make an appointment with Dr. Mark Stolar, MD?

Click here to schedule an appointment online. New patients can also call (815) 255-3312, and for other questions, call (815) 344-2300.

Does Dr. Mark Stolar, MD offer telehealth services?

Dr. Stolar has indicated that they offer telehealth. Contact the office to check for eligibility for your needs.

Is Dr. Mark Stolar, MD accepting new patients?

Dr. Mark Stolar, MD generally accepts new patients on Healthgrades. You can see Dr. Stolar's profile to make an appointment.

Does Dr. Mark Stolar, MD accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Stolar accepts your insurance.

What are Dr. Mark Stolar, MD's top areas of care?

Dr. Stolar frequently treats Diabetes Type 1, Hypothyroidism, and Mastodynia. See all procedures and conditions Dr. Stolar treats.

Where is Dr. Mark Stolar, MD's office located?

Dr. Stolar's office is located at 2507 N Richmond Rd, McHenry, IL 60051. Find other locations and directions on Healthgrades.

Affiliated Hospitals

Dr. Stolar is affiliated with the following hospitals. Select a hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

Northwestern Medicine Mchenry Hospital

McHenry, IL

69% Patient Experience Rating, Equal to the national average

13 Awards Received

Award Highlight: America's 250 Best Hospitals Award™ (2021)

Northwestern Medicine Huntley Hospital

Huntley, IL

7 Awards Received

Northwestern Medicine Woodstock Hospital

Woodstock, IL

6 Awards Received

Award Highlight: Patient Safety Excellence Award™ (2019)

Northwestern Memorial Hospital

Chicago, IL

81% Patient Experience Rating, 12% higher than the national average

18 Awards Received

Award Highlight: Outstanding Patient Experience Award™ (2021)

Northwestern Medicine Lake Forest Hospital

Lake Forest, IL

80% Patient Experience Rating, 11% higher than the national average

2 Awards Received

Award Highlight: Outstanding Patient Experience Award™ (2021)